Calculating Density—Mass is measured in grams. The abbreviation is g. —Volume is measured in cubic centimeters (centimeters cubed). The abbreviation is cm3.
An Example: —My Lego block has the following measurements:
H
4.5 cm
L
4 cm
4.5 cm x 4 cm x 2 cm =
36 cm3
W
2 cm
Mass
18 g
Volume
36 cm3
Density = Mass ÷ Volume = 18 g ÷ 36 cm3Density = 0.5 g/cm3
physical property - any characteristic of a material, such as state, color, and volume, that can be observed or measured without changing or attempting to change the material density - measurable physical property that can be found by dividing the mass of an object by its volume hardness - the ability of a mineral to resist being scratched brittle - easily damaged or destroyed color - the quality of an object or substance with respect to light reflected from the substance luster - the way that a mineral's surface reflects light streak - the color of the mark that a mineral makes when it is scraped on a white tile texture - the tactile quality of a surface (the way a surface feels) conductivity - the ability to allow heat energy or electricity to pass through an object easily ductile - the ability to be drawn out into wires malleability - the ability to be shaped by hammering or pressing reactivity - the ability of an atom to have a chemical reaction with another atom phase change - a change from one state to another (solid - liquid - gas - plasma) without a change in physical composition minerals - a solid natural material that has a crystal form and its own set of properties metalloids - non-metals - metals -
Guiding Questions
1. What physical properties can be used to distinguish metals, non-metals and metalloids?
2. How can density be used by scientists?
3. How can physical properties be used to identify minerals?
WEBQUEST
Part 1: Metals and Nonmetals
Part 2: Atoms and Elements: Metals
Part 3: Non-Metals
Advanced PBL
Review Page
Calculating Density—Mass is measured in grams. The abbreviation is g.
—Volume is measured in cubic centimeters (centimeters cubed). The abbreviation is cm3.
An Example:
—My Lego block has the following measurements:
Density = Mass ÷ Volume = 18 g ÷ 36 cm3Density = 0.5 g/cm3
Great videos over the elements on the Periodic Table
http://www.periodicvideos.com/
Other websites about the elements on the Periodic Table
ChemiCool Periodic Table
http://www.webelements.com/
http://www.chemicalelements.com/
Really cool experiments dealing with density
Density Tower
Will a Bowling Ball Float?
That is One Heavy Gas!
Vocabulary
physical property - any characteristic of a material, such as state, color, and volume, that can be observed or measured without changing or attempting to change the material
density - measurable physical property that can be found by dividing the mass of an object by its volume
hardness - the ability of a mineral to resist being scratched
brittle - easily damaged or destroyed
color - the quality of an object or substance with respect to light reflected from the substance
luster - the way that a mineral's surface reflects light
streak - the color of the mark that a mineral makes when it is scraped on a white tile
texture - the tactile quality of a surface (the way a surface feels)
conductivity - the ability to allow heat energy or electricity to pass through an object easily
ductile - the ability to be drawn out into wires
malleability - the ability to be shaped by hammering or pressing
reactivity - the ability of an atom to have a chemical reaction with another atom
phase change - a change from one state to another (solid - liquid - gas - plasma) without a change in physical composition
minerals - a solid natural material that has a crystal form and its own set of properties
metalloids -
non-metals -
metals -
Important Links
Chem4Kids: Matter
Physical Properties Song
Virtual Lab: Minerals
FLIPPED LESSON: Metals, NonMetals and Metalloids
Grouping Elements Lesson
Chem4Kids: Matter
The Periodic Table of Videos
Where Do Metals Come From?
What is Density?
Density
Density KidsGeo
How to Calculate Density
How to Do A Density Problem
Sulfur Hexaflouride Demo
How Can I Identify Unknown Minerals?
What are Minerals Interactive
ID Minerals Interactive
Interactive Games
Changing Matter
Changing State
Reversible and Irreversible Changes
Properties of Matter Matching
Properties of Matter Concentration
Properties of Matter Word Search
Density Simulation
Moh's Drill
Minerals Rock'n Internet Site